36results about How to "Automatically adjust output power" patented technology

The invention relates to an electromobile hybrid battery-driven system and belongs to a power-driven system for an electromobile, and the system can be used for solving the problems that the output load power of the existing solar battery and storage batter combined hybrid power source is fixed and the output power of a solar battery in the power source is unstable. The electromobile hybrid battery-driven system disclosed by the invention comprises a first storage battery, a vehicle-mounted charging system, a first direct current converter, a second storage battery, a second direct current converter, a solar battery pack, a third direct current converter, a permanent magnetic synchronous motor, a driving controller, a vehicle condition feedback device and an engine control unit. The electromobile hybrid battery-driven system disclosed by the invention can automatically regulate the output power of the solar battery pack and a storage battery pack according to requirement of load power, when the output power of the solar battery pack is insufficient, the storage battery pack is automatically started to supply power, thus optimal coordination of the output power is realized, the problems that the output load power of the existing solar battery and storage battery combined hybrid power source is fixed and the output power of the solar battery in the power source is unstable are solved, and the system can adapt to the power supply requirement of the electromobile.

The invention relates to a hydraulic type bulk feed transportation vehicle. A power takeoff device is driven by the output power of an automobile gearbox; a high-pressure oil pump is transmitted to drive a hydraulic system; the high-pressure oil pump is connected with a distributing valve through a pipeline; three output ends of the valve are connected with a corner hydraulic motor, a lifting oil cylinder and a horizontal discharging hydraulic motor, vertical discharging hydraulic motor and movable discharging hydraulic motor in serial connection respectively; a discharging device consists of a horizontal discharging system, a vertical discharging system and a movable discharging system which are spiral conveyors driven by the hydraulic motor; the horizontal discharging system is arranged inside a tank body; the vertical discharging system is positioned outside the tank body; a feed port and a discharge port of the vertical discharging system are communicated with a discharge port of the horizontal discharging system and a feed port of the movable discharging system respectively; the lifting oil cylinder and a cylinder body of the movable discharging system are connected to realize up-and-down lifting; and the discharging device is also provided with a corner system for producing horizontal deflexion of the movable discharging cylinder body. The hydraulic type bulk feed transportation vehicle has the advantages of reducing packaging cost, saving feed, avoiding causing pollution in the loading and unloading and transportation links.

The invention relates to an output-power-adjustable active PFC+ bridge-type soft switch power converter and a conversion method thereof, wherein the output-power-adjustable active PFC+ bridge-type soft switch power converter is completely different from a present LLC resonant mode and a phase shift full-bridge soft switch mode and suitable for a bipolar transistor applied soft switch mode, and especially a medium and high power efficient switching power supply is formed by the output-power-adjustable active PFC and the power converter. The output-power-adjustable active PFC is used for PFC control and output power adjustment. The power converter is used for energy conversion and separation from the PFC to load and output of sampling feedback to the active PFC. The advantages are that the implementation cost is low, development is simple and performance is reliable; and the power conversion efficiency is more than 90%, and output power of the power supply converter can be automatically adjusted according to the change of the load.

The invention relates to a power circuit for an intelligent variable power high-frequency separately excited electromagnetic induction lamp. The power supply of the conventional high-frequency electromagnetic induction lamp adopts the self-excited vibration mode and realizes frequency matching by using an LC series resonant circuit. The resonant frequency can be influenced by parameter change of each element of the series resonant circuit so as to cause problems of difficult debugging, unstable working frequency, higher error rate in the using process and immutable power. The power circuit of the invention comprises a filter rectification circuit (1), wherein the filter rectification circuit is connected with a power factor correcting circuit (2); the power factor correcting circuit is connected with a power regulating circuit (3); and the power regulating circuit and a high-frequency signal driving circuit (4) which is controlled by a singlechip intelligent control chip (6) are connected with a power coupling matching circuit (5). The product is used on occasions with specific requirements on the power at different time intervals.

The invention discloses a hair cutter capable of adjusting the output power of a motor automatically, which comprises a main body and a cutting head, wherein the cutting head comprises a fixed blade component, a movable blade component, a spring bracket and a cutter pushing rod, wherein the main body is provided with a motor, a cell and a charging component, and is characterized in that: a printed circuit board is arranged in the main body; the printed circuit board is provided with a sensor and a chip; and the upper part of the main body is provided with a display panel. The hair cutter can transmits the resistance generated by the output power of the motor when the movable blade component and the fixed blade component cut hairs to the chip to allow the chip to determine the length and density of the hairs according to the size of the resistance, so that the output power of the motor can be changed, the phenomenon that the hairs are clipped due to power shortage is avoided, the related data is reflected to the user through the display panel and understood by the user immediately to avoid misoperation of the user.

The invention discloses a full-automatic smelting control system and a control method for polycrystalline silicon. The system structurally comprises a programmable logic controller (PLC), a medium-frequency power distribution board, a polycrystalline silicon smelting crucible temperature device, a current power and temperature digital display device, a sensor and a 4-20MA current signal generator. The system and the method have the advantages that firstly, a mode of whole-process temperature measurement and heating on a wall of a crucible by a thermocouple of a medium-frequency induction furnace is adopted, process-related power and frequency of a medium-frequency power supply and real-time smelting temperature of polycrystalline silicon can be all converted into digital signals through the sensor, the digital signals are transmitted to a PLC system, the PLC system can perform PID (proportion integration differentiation) regulation on the parameters according to process requirements of polycrystalline silicon, and an output result can accurately control various performance indexes of polycrystalline silicon, so that the rejection rate of products is greatly reduced; secondly, the labor intensity is reduced; thirdly, the production efficiency is improved; fourthly, potential safety hazards are reduced.

The present invention discloses a laser pollution-removing system and its pollution-removing method. Said method includes the following steps: providing a laser transmission probe which is used for setting the parameters of said laser transmission probe and producing a laser beam; and locating alignment relation ship between laser beam and junction of circuit board. The invented laser pollution-removing system for removing pollutant on the several junctions of a circuit board includes the following several portions: a laser transmission probe for producing a laser beam; a placing platform for fixing a circuit board with several junctions; and a locator for locating alignment relationship between laser beam and junction.

The invention discloses a control method of a mowing machine and the mowing machine, when the mowing machine is in a dynamic mode, the control method of the mowing machine comprises the following steps: according to previous mowing data, obtaining initial current limiting values and maximum rotating speeds of a cutting knife motor and a walking motor; the input current of each motor is monitored, and whether the input current of each motor is smaller than the current limiting value or not is judged; when the input current of the walking motor or the cutting knife motor is continuously equal to or larger than the current limiting value, the current limiting values and the maximum rotating speeds of the walking motor and the cutting knife motor are reset according to the current slope where the mower is located and the maximum discharging capacity of the battery pack, so that it is guaranteed that the mower works normally when encountering a fault. According to the control method of the mower and the mower provided by the invention, the whole mower is in an optimal performance state.

The invention provides a hydraulic control system for a ditcher, and belongs to a mechanical hydraulic engineering device. The system comprises a hydraulic oil tank, a walking unit, a ditching unit, an excavation unit, a ditching adjustment unit and a heat dissipation unit. The system relates to a whole hydraulic control and driving scheme in the ditcher, and under the control of the scheme, the functions of independently controlling caterpillars on two sides of the ditcher, enabling a ditching device and an excavation device to work independently, flexibly adjusting the whole body angle and adjusting the ditching depth can be realized, thereby greatly enhancing the ditcher passing ability on one hand, and greatly enhancing the adaptability of the ditcher to the non-even pavements so as toimprove the ditching efficiency and ensure the ditching quality on the other hand.

The invention relates to the field of LED display screen detection, and discloses an LED display screen fault self-detection method and an LED display screen fault inspection method. A power detection element is used as a detection source, the existing LED display screen circuit structure is not changed, the method is simple and easy to implement, and the production cost is not increased; LED lamp bead faults can be detected point by point, and output faults of output pins of a constant current/constant voltage chip can be detected; output or input faults of two adjacent constant-current/constant-voltage chips can be detected, faults of the first constant-current/constant-voltage chip of the LED control card and the LED universal unit module can be detected, output and input faults of two adjacent LED universal unit modules can be detected, and output power of a power supply can be automatically adjusted when faults of a part of the power supply are detected or the temperature of a working environment is changed; and the fault detection result is uploaded to an external network platform or network equipment.

The invention relates to the field of LED display screen detection, and discloses a power detection circuit and an LED display screen self-checking inspection system. Compared with the prior art, the power detection circuit provided by the invention has the following advantages that a power detection element is adopted as a detection source, the existing LED display screen circuit structure is not changed, the power detection circuit is simple and easy to implement, and the production cost is not increased; LED lamp faults can be detected point by point, and constant current/constant voltage chip pin output faults can be detected; the system also can detect the output or input faults of two adjacent constant current/constant voltage chips, the faults of the first constant current/constant voltage chip of the LED control card and the LED general unit module, the output and input faults of two adjacent LED general unit modules, and the automatic adjustment of the output power of the power supply when the fault of a part of the power supply or the change of the temperature of the working environment is detected.